/Engine/Plugins/Experimental/RemoteSession/Source/RemoteSession/Public/Channels/RemoteSessionARSystemChannel.h
aTArrayof all the tracked geometries known to your ar system
virtual [TArray](API\Runtime\Core\Containers\TArray)< [UARTrackedGeometry](API\Runtime\AugmentedReality\UARTrackedGeometry) * > OnGetAllTrackedGeometries() const